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CA2119848A1 - Exhaust Gas Purifying Apparatus - Google Patents

Exhaust Gas Purifying Apparatus

Info

Publication number
CA2119848A1
CA2119848A1 CA2119848A CA2119848A CA2119848A1 CA 2119848 A1 CA2119848 A1 CA 2119848A1 CA 2119848 A CA2119848 A CA 2119848A CA 2119848 A CA2119848 A CA 2119848A CA 2119848 A1 CA2119848 A1 CA 2119848A1
Authority
CA
Canada
Prior art keywords
converter
exhaust gas
catalytic substrate
purifying apparatus
gas purifying
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA2119848A
Other languages
French (fr)
Other versions
CA2119848C (en
Inventor
Minoru Machida
Toshio Yamada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NGK Insulators Ltd
Original Assignee
NGK Insulators Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26376087&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2119848(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by NGK Insulators Ltd filed Critical NGK Insulators Ltd
Publication of CA2119848A1 publication Critical patent/CA2119848A1/en
Application granted granted Critical
Publication of CA2119848C publication Critical patent/CA2119848C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/22—Control of additional air supply only, e.g. using by-passes or variable air pump drives
    • F01N3/222—Control of additional air supply only, e.g. using by-passes or variable air pump drives using electric valves only
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features
    • F01N13/009—Exhaust or silencing apparatus characterised by constructional features having two or more separate purifying devices arranged in series
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/22—Control of additional air supply only, e.g. using by-passes or variable air pump drives
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F01N3/2803—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
    • F01N3/2825—Ceramics
    • F01N3/2828—Ceramic multi-channel monoliths, e.g. honeycombs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N2330/00—Structure of catalyst support or particle filter
    • F01N2330/06—Ceramic, e.g. monoliths

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Ceramic Engineering (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Catalysts (AREA)

Abstract

In an exhaust gas purifying apparatus including first and second exhaust converters composed of a honeycomb catalytic substrate, arranged in sequence from an exhaust manifold towards downstream exhaust gas flow of an engine, wherein the catalytic substrate of the first converter has a heat capacity of not exceeding 0.5 J/K per 1 cm3 in temperatures ranging from room temperature up to 300°C, and the catalytic substrate of the second converter has a geometric surface area of at least 25 cm2/cm3. The first converter purifies exhaust gas immediately after starting up and before completion of warming up of the engine, and the second converter further purifies noxious contents still remaining as being beyond capacity of the first converter.
CA002119848A 1993-03-26 1994-03-24 Exhaust gas purifying apparatus Expired - Fee Related CA2119848C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP6855493 1993-03-26
JP5-68,554 1993-03-26
JP6-36,986 1994-03-08
JP6036986A JP2904431B2 (en) 1993-03-26 1994-03-08 Exhaust gas purification equipment

Publications (2)

Publication Number Publication Date
CA2119848A1 true CA2119848A1 (en) 1994-09-27
CA2119848C CA2119848C (en) 1999-03-30

Family

ID=26376087

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002119848A Expired - Fee Related CA2119848C (en) 1993-03-26 1994-03-24 Exhaust gas purifying apparatus

Country Status (5)

Country Link
US (1) US5455012A (en)
EP (1) EP0622530B2 (en)
JP (1) JP2904431B2 (en)
CA (1) CA2119848C (en)
DE (1) DE69401838T3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9581115B2 (en) 2012-03-02 2017-02-28 Ford Global Technologies, Llc Induction system including a passive-adsorption hydrocarbon trap

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0713725B1 (en) * 1994-11-22 2001-04-25 Cataler Industrial Co., Ltd. Metallic support catalyst
JP3093598B2 (en) * 1995-01-13 2000-10-03 日本碍子株式会社 Exhaust gas purification device
DE19814132A1 (en) * 1998-03-30 1999-10-14 Emitec Emissionstechnologie Honeycomb body with adsorber material, especially for a hydrocarbon trap
DE19820971A1 (en) * 1998-05-12 1999-11-18 Emitec Emissionstechnologie Catalytic converter for purifying the exhaust gas from an I.C. engine
US6182443B1 (en) * 1999-02-09 2001-02-06 Ford Global Technologies, Inc. Method for converting exhaust gases from a diesel engine using nitrogen oxide absorbent
DE19921263A1 (en) * 1999-05-07 2000-11-16 Emitec Emissionstechnologie Internal combustion engine with a small-volume catalyst
JP3390698B2 (en) * 1999-05-31 2003-03-24 日本碍子株式会社 Canning structure
GB0003405D0 (en) * 2000-02-15 2000-04-05 Johnson Matthey Plc Improvements in emissions control
JP4863596B2 (en) 2001-06-18 2012-01-25 日産自動車株式会社 Exhaust gas purification system
DE10300408A1 (en) * 2003-01-09 2004-07-22 Emitec Gesellschaft Für Emissionstechnologie Mbh Fluid treatment method and honeycomb body
JP4527412B2 (en) 2004-02-04 2010-08-18 イビデン株式会社 Honeycomb structure aggregate and honeycomb catalyst
WO2006137162A1 (en) 2005-06-24 2006-12-28 Ibiden Co., Ltd. Honeycomb structure body, honeycomb structure body assembly, and honeycomb catalyst
JP5419669B2 (en) 2009-12-14 2014-02-19 日本碍子株式会社 Honeycomb catalyst body

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA72770B (en) * 1971-02-19 1972-11-29 Universal Oil Prod Co Combustion engine
US4072471A (en) * 1974-05-28 1978-02-07 Mobil Oil Corporation Catalytic converter for removing noxious components from a gaseous stream
GB1584998A (en) * 1976-10-07 1981-02-18 Engelhard Min & Chem Treatment of exhaust gases from internal combustion engines
FR2450946A1 (en) * 1979-03-08 1980-10-03 Peugeot DEVICE FOR PURIFYING EXHAUST GASES FROM AN EXPLOSION ENGINE
US4541995A (en) * 1983-10-17 1985-09-17 W. R. Grace & Co. Process for utilizing doubly promoted catalyst with high geometric surface area
JPH0634923B2 (en) * 1987-03-14 1994-05-11 日本碍子株式会社 Ceramic honeycomb structure
JPS647935A (en) * 1987-06-30 1989-01-11 Nissan Motor Catalytic converter device
DE8908738U1 (en) † 1989-07-18 1989-09-07 Emitec Gesellschaft für Emissionstechnologie mbH, 5204 Lohmar Honeycomb bodies with internal flow guide surfaces, in particular catalyst bodies for motor vehicles
JPH03202613A (en) * 1989-12-28 1991-09-04 Komatsu Ltd Exhaust gas catalyst device for internal combustion engine
JP2853385B2 (en) * 1991-08-07 1999-02-03 トヨタ自動車株式会社 Secondary air supply device for internal combustion engine
US5331810A (en) * 1992-05-21 1994-07-26 Arvin Industries, Inc. Low thermal capacitance exhaust system for an internal combustion engine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9581115B2 (en) 2012-03-02 2017-02-28 Ford Global Technologies, Llc Induction system including a passive-adsorption hydrocarbon trap

Also Published As

Publication number Publication date
JP2904431B2 (en) 1999-06-14
US5455012A (en) 1995-10-03
DE69401838T2 (en) 1997-07-31
DE69401838T3 (en) 2000-03-16
DE69401838D1 (en) 1997-04-10
EP0622530B2 (en) 1999-12-15
EP0622530B1 (en) 1997-03-05
JPH07766A (en) 1995-01-06
CA2119848C (en) 1999-03-30
EP0622530A1 (en) 1994-11-02

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed